[? var. of FRUSH.] trans. and intr. (See quots.) Hence Flushing vbl. sb.
1739. Labelve, Short Acc. Piers Westm. Bridge, 77. Chamfering the Joints hinders the flushing or breaking of the Edges of the Stones.
1853. Archil. Publ. Soc. Dict., s.v. Masons … say that a stone has flushed, where more or less of its arrised edge has broken away in consequence of that edge being more loaded than the rest of the bed.
